Instruction manual for the Futaba GY502 AVCS rate gyro, covering safety, installation, flight adjustments, and data settings for model helicopters.
This manual provides instructions for the Futaba GY502 AVCS (Angular Vector Control System) rate gyro, designed for use with .60 type and other model helicopters. It details the differences between conventional and AVCS gyro systems, emphasizing the AVCS system's ability to automatically trim rudder against side winds and return the tail to its original position. The document includes safety precautions regarding mounting, operating conditions, and fuselage maintenance to ensure optimal performance and user safety.
| Product Type | Yaw-axis stabilizer for helicopter (rate gyro) |
|---|---|
| Display Device | 8-character dot matrix liquid crystal display |
| Operating Voltage Range | DC 3.8V to 6.0V |
| Current Drain | 70mA (@5.0V, including sensor) |
| Operating Temperature Range | -10 to +50 degree C |
| Operating Humidity Range | 10 to 90%RH (no condensation) |
| Dimensions (Amp) | 57 x 32 x 15mm |
| Dimensions (Sensor) | 34 x 34 x 16.5mm |
| Weight (Amp) | 34g |
| Weight (Sensor) | 25g |
The AVCS system performs an operation that stops drifting and returns to the original position, improving rudder trim operation and stability during high-speed reverse flight.
The rudder neutral position in the AVCS mode must always be re-read before use by turning on the transmitter in AVCS mode and then the gyro.
Avoid sudden temperature changes, such as flying immediately after removing the model from a heated or air-conditioned car, as this can cause the neutral position to change.